diff --git a/llvm/docs/Frontend/PerformanceTips.rst b/llvm/docs/Frontend/PerformanceTips.rst
index 289106cd1e28e..4baf127bf050b 100644
--- a/llvm/docs/Frontend/PerformanceTips.rst
+++ b/llvm/docs/Frontend/PerformanceTips.rst
@@ -206,7 +206,9 @@ Other Things to Consider
    that fact is critical for optimization purposes.  Assumes are a great
    prototyping mechanism, but they can have negative effects on both compile
    time and optimization effectiveness.  The former is fixable with enough
-   effort, but the later is fairly fundamental to their designed purpose.
+   effort, but the later is fairly fundamental to their designed purpose.  If
+   you are creating a non-terminator unreachable instruction or passing a false
+   value, use the ``store i1 true, ptr poison, align 1`` canonical form.
 
 
 Describing Language Specific Properties